How to optimize a website for SEO?

SEO (Search Engine Optimization) is the process of optimizing the content and structure of a website to improve its ranking on search engine results pages, thereby attracting more valuable traffic to the website. Here are some steps to take to optimize your website for SEO:

1. Know your target audience: before doing SEO optimization, you need to know who your target audience is and what keywords they will use to search for relevant content on search engines.
2. Keyword research: once you know your target audience, you can conduct keyword research. Use a keyword tool (e.g. Google AdWords Keyword Planner, etc.) to determine which keywords have high search volume and low competition.
   
3. Optimize website content: create valuable, high-quality content on your website that meets the needs of your target audience. Use keywords to optimize titles, descriptions, body copy and tags.
4. Optimize site structure: Make sure the site structure is simple and clear, easy to navigate and index by search engines. Optimize page titles, descriptions and URLs.
5. Internal linking: Internal linking increases the relevance between pages and makes it easier for search engines to index all the pages of a website.
6. Improve Website Speed: Website speed is one of the factors that search engines like Google use to evaluate websites. Use techniques such as optimizing images, compressing code, and using a CDN to speed up your website.
7. Mobile Friendly: With more and more people using mobile devices to access websites, it is also important to make sure that the website is mobile friendly. Use techniques such as responsive design and mobile versions of your website to accommodate access from different devices.
8. Getting External Links: External links are links from other websites that link to your website. Getting external links by creating valuable content, issuing press releases, etc. can help improve your website's ranking in search engines.

These are the basic steps of website SEO optimization, but they need to be constantly followed up and optimized to stay competitive.